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Finding the Fourth Proportional to 22,435.62, 33,388.62 and 21,688.17

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Solution

The fourth proportional to 22,435.62, 33,388.62 and 21,688.17 is: 32,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,435.62 : 33,388.62 = 21,688.17 : x
  2. Step 2: Convert to fraction form
    22,435.62/33,388.62 = 21,688.17/x
  3. Step 3: Cross multiply
    22,435.62x = 33,388.62 × 21,688.17
  4. Step 4: Simplify right side
    22,435.62x = 724,137,937.54
  5. Step 5: Solve for x
    x = 724,137,937.54/22,435.62
  6. Step 6: Final answer
    x = 32,276.26

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.